16
PROBLEM
POSSIBLE CAUSE
REMEDY
Water overflow
from bottom of
door.
1. Clogged drain.
2. Machine not level.
3. Excessive inlet pressure.
4. Detergent foaming.
5. Wash/rinse arm end-cap missing.
6. Excessive fill time.
1. Remove obstruction.
2. Level machine or increase height to the front.
3. Install pressure reducing valve or adjust if one is present.
Ensure flow meets data plate specification.
4. Reduce detergent quantity.
5. Replace.
6. Adjust timer fill time (see Initial Start-up section).
Wash motor
doesn’t
operate on
delime wash.
1. Loose or broken wires.
2. Defective delime switch.
3. Defective motor starting relay.
1. Reconnect or replace wires in motor.
2. Verify delime switch triggers input on PLC. If not, check
wiring/replace membrane.
3. Replace.
Motor operates
on delime
wash but not
on automatic.
1. Defective circuit in delime switch.
2. Loose or broken wires.
1. Replace switch.
2. Tighten and/or replace.
No water comes
through the
arm when the
“FILL” switch is
depressed.
1. Water not turned on.
2. Defective solenoid valve.
1. Turn water on.
2. Replace solenoid valve.
Little or no
water coming
through the rinse
assemblies.
1. Limed-up rinse heads or piping.
2. Low water pressure.
1. Delime rinse heads.
2. Increase pipe size to machine. Adjust pressure
regulator.
Rinse water runs
continuously
with breaker
turned off.
1. Defective plunger in solenoid valve.
2. Defective diaphragm in solenoid valve.
1. Replace.
2. Replace diaphragm.
COMMON PROBLEMS
TROUBLESHOOTING